HRR25 serine/threonine protein kinase HRR25 [Saccharomyces cerevisiae S288C] - Gene

Summary

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Official Symbol: HRR25
Official Full Name: serine/threonine protein kinase HRR25
Primary source: SGD:S000006125
Locus tag: YPL204W
See related: AllianceGenome:SGD:S000006125; FungiDB:YPL204W; VEuPathDB:YPL204W
Gene type: protein coding
RefSeq status: REVIEWED
Organism: Saccharomyces cerevisiae S288C (strain: S288C)
Lineage: Eukaryota; Fungi; Dikarya; Ascomycota; Saccharomycotina; Saccharomycetes; Saccharomycetales; Saccharomycetaceae; Saccharomyces
Also known as: KTI14
Summary: Enables protein serine/threonine kinase activity and protein tyrosine kinase activity. Involved in several processes, including pexophagy; regulation of vesicle-mediated transport; and ribosome biogenesis. Located in several cellular components, including P-body; cellular bud tip; and spindle pole body. Part of monopolin complex. Used to study several diseases, including advanced sleep phase syndrome; brain disease; familial adenomatous polyposis; neurodegenerative disease (multiple); and syndromic X-linked intellectual disability Najm type. Human ortholog(s) of this gene implicated in advanced sleep phase syndrome 2 and invasive ductal carcinoma. Orthologous to several human genes including TPTEP2-CSNK1E (TPTEP2-CSNK1E readthrough); CSNK1D (casein kinase 1 delta); and CSNK1E (casein kinase 1 epsilon). [provided by Alliance of Genome Resources, Jul 2025]
Orthologs: all
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Genomic context

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See HRR25 in Genome Data Viewer

Location:: chromosome: XVI

Exon count:: 1

Sequence:: Chromosome: XVI; NC_001148.4 (164276..165760)

Chromosome XVI - NC_001148.4 Genomic Context describing neighboring genes

Genomic regions, transcripts, and products

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Go to reference sequence details

Genomic Sequence:: NC_001148.4

Go to nucleotide: Graphics FASTA GenBank

Bibliography

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GeneRIFs: Gene References Into Functions

What's a GeneRIF?

Pex3 confines pexophagy receptor activity of Atg36 to peroxisomes by regulating Hrr25-mediated phosphorylation and proteasomal degradation.
Title: Pex3 confines pexophagy receptor activity of Atg36 to peroxisomes by regulating Hrr25-mediated phosphorylation and proteasomal degradation.
P-bodies are required for the efficient completion of meiosis. P-bodies were found to be present during all phases of the meiotic program and to provide protection for the Hrr25/CK1 protein kinase, a key regulator of this developmental process.
Title: P-Body Localization of the Hrr25/Casein Kinase 1 Protein Kinase Is Required for the Completion of Meiosis.
The C-terminal region of Hrr25 is required for normal inhibition of expression of Haa1 target genes TPO2 and YRO2 and is important for cell growth but is not required for cell morphogenesis
Title: Casein Kinase I Isoform Hrr25 Is a Negative Regulator of Haa1 in the Weak Acid Stress Response Pathway in Saccharomyces cerevisiae.
Together, the Hrr25 central domain and Mam1 form a novel, contiguous embellishment to the Hrr25 kinase domain that affects Hrr25 conformational dynamics and enzyme kinetics.
Title: Structure of the Saccharomyces cerevisiae Hrr25:Mam1 monopolin subcomplex reveals a novel kinase regulator.
This recruitment requires Hrr25 kinase activity and the Dcp2 decapping enzyme, a core constituent of these RNP granules. Interestingly, the data indicate that this localization sequesters active Hrr25 away from the remainder of the cytoplasm and thereby shields this enzyme from the degradation machinery during these periods of stress.
Title: The Activity-Dependent Regulation of Protein Kinase Stability by the Localization to P-Bodies.
Ypt1 binds and activates Hrr25 to spatially regulate its kinase activity.
Title: Ypt1/Rab1 regulates Hrr25/CK1δ kinase activity in ER-Golgi traffic and macroautophagy.
Hrr25, a homolog of CSNK1D/casein kinase 1delta, regulates 3 of 4 selective autophagy-related pathways in the budding yeast Saccharomyces cerevisiae by a uniform mechanism: phosphoregulation of the receptor-scaffold interaction
Title: Hrr25: an emerging major player in selective autophagy regulation in Saccharomyces cerevisiae.
Hrr25 protein kinase directly modifies Elp1 on two sites and we provide evidence that phosphorylation plays a positive role in the tRNA modification
Title: Phosphorylation of Elp1 by Hrr25 is required for elongator-dependent tRNA modification in yeast.
Hrr25 is essential for ribosome assembly in Saccharomyces cerevisiae.
Title: Hrr25/CK1δ-directed release of Ltv1 from pre-40S ribosomes is necessary for ribosome assembly and cell growth.
Hrr25 kinase and Ede1 cooperate to initiate and stabilize endocytic sites
Title: Casein kinase 1 promotes initiation of clathrin-mediated endocytosis.

Submit: New GeneRIF Correction See all GeneRIFs (18)

Pathways from PubChem

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Interactions

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Products	Interactant	Other Gene	Complex	Source	Pubs	Description

General gene information

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Homology

NCBI Orthologs

Orthologs from OrthoDB

Gene Ontology Provided by SGD

Function	Evidence Code	Pubs
enables ATP binding	IEA Inferred from Electronic Annotation more info
enables identical protein binding	IPI Inferred from Physical Interaction more info	PubMed
enables kinase activity	IEA Inferred from Electronic Annotation more info
enables nucleotide binding	IEA Inferred from Electronic Annotation more info
enables protein binding	IPI Inferred from Physical Interaction more info	PubMed
enables protein kinase activity	HDA more info	PubMed
enables protein kinase activity	IEA Inferred from Electronic Annotation more info
enables protein serine kinase activity	IEA Inferred from Electronic Annotation more info
enables protein serine/threonine kinase activity	IBA Inferred from Biological aspect of Ancestor more info
enables protein serine/threonine kinase activity	IDA Inferred from Direct Assay more info	PubMed
enables protein serine/threonine kinase activity	IEA Inferred from Electronic Annotation more info
enables protein serine/threonine kinase activity	IMP Inferred from Mutant Phenotype more info	PubMed
enables protein tyrosine kinase activity	IDA Inferred from Direct Assay more info	PubMed
enables protein tyrosine kinase activity	IEA Inferred from Electronic Annotation more info
enables transferase activity	IEA Inferred from Electronic Annotation more info

Process	Evidence Code	Pubs
involved_in DNA damage response	IEA Inferred from Electronic Annotation more info
involved_in DNA repair	IEA Inferred from Electronic Annotation more info
involved_in DNA repair	IMP Inferred from Mutant Phenotype more info	PubMed
involved_in endocytosis	IBA Inferred from Biological aspect of Ancestor more info
involved_in homologous chromosome segregation	IEA Inferred from Electronic Annotation more info
involved_in meiotic chromosome segregation	NAS Non-traceable Author Statement more info	PubMed
involved_in pexophagy	IMP Inferred from Mutant Phenotype more info	PubMed
involved_in positive regulation of clathrin-dependent endocytosis	IMP Inferred from Mutant Phenotype more info	PubMed
involved_in regulation of DNA repair	IBA Inferred from Biological aspect of Ancestor more info
involved_in regulation of ER to Golgi vesicle-mediated transport	IDA Inferred from Direct Assay more info	PubMed
involved_in regulation of ER to Golgi vesicle-mediated transport	IMP Inferred from Mutant Phenotype more info	PubMed
involved_in regulation of autophagosome assembly	IMP Inferred from Mutant Phenotype more info	PubMed
involved_in regulation of protein localization	IMP Inferred from Mutant Phenotype more info	PubMed
involved_in regulation of protein localization by the Cvt pathway	IMP Inferred from Mutant Phenotype more info	PubMed
involved_in regulation of vesicle fusion with Golgi apparatus	IMP Inferred from Mutant Phenotype more info	PubMed
involved_in ribosomal large subunit biogenesis	IMP Inferred from Mutant Phenotype more info	PubMed
involved_in ribosomal small subunit biogenesis	IDA Inferred from Direct Assay more info	PubMed
involved_in ribosomal small subunit biogenesis	IMP Inferred from Mutant Phenotype more info	PubMed
involved_in signal transduction	IBA Inferred from Biological aspect of Ancestor more info
involved_in spindle attachment to meiosis I kinetochore	IMP Inferred from Mutant Phenotype more info	PubMed
involved_in tRNA wobble uridine modification	IMP Inferred from Mutant Phenotype more info	PubMed

Component	Evidence Code	Pubs
located_in Golgi apparatus	IDA Inferred from Direct Assay more info	PubMed
located_in P-body	IDA Inferred from Direct Assay more info	PubMed
located_in cellular bud neck	HDA more info	PubMed
located_in cellular bud neck	IDA Inferred from Direct Assay more info	PubMed
located_in cellular bud tip	IDA Inferred from Direct Assay more info	PubMed
located_in chromosome, centromeric region	IDA Inferred from Direct Assay more info	PubMed
located_in cytoplasm	HDA more info	PubMed
is_active_in cytoplasm	IBA Inferred from Biological aspect of Ancestor more info
located_in cytoplasm	IEA Inferred from Electronic Annotation more info
located_in cytosol	HDA more info	PubMed
located_in microtubule organizing center	IEA Inferred from Electronic Annotation more info
part_of monopolin complex	IDA Inferred from Direct Assay more info	PubMed
part_of monopolin complex	IMP Inferred from Mutant Phenotype more info	PubMed
part_of monopolin complex	IPI Inferred from Physical Interaction more info	PubMed
located_in nucleolus	IEA Inferred from Electronic Annotation more info
located_in nucleoplasm	IEA Inferred from Electronic Annotation more info
is_active_in nucleus	IBA Inferred from Biological aspect of Ancestor more info
located_in nucleus	IDA Inferred from Direct Assay more info	PubMed
located_in nucleus	IEA Inferred from Electronic Annotation more info
located_in plasma membrane	IDA Inferred from Direct Assay more info	PubMed
located_in plasma membrane	IEA Inferred from Electronic Annotation more info
part_of preribosome, small subunit precursor	IDA Inferred from Direct Assay more info	PubMed
located_in spindle pole body	IDA Inferred from Direct Assay more info	PubMed

General protein information

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Preferred Names: serine/threonine protein kinase HRR25

NP_015120.1

EC 2.7.11.1

Casein kinase and monopolin subunit; regulates diverse events including vesicular traffic, DNA repair, the CVT pathway, ribosomal subunit biogenesis, cohesin cleavage, monopolar attachment of sister kinetochores at MI and exit from MII; autophosphorylation regulates elongator-dependent tRNA modifications; binds the RNAPII CTD; phosphorylates COPII coat subunits; antagonizes phosphatase Sit4p; inhibits Crz1p and calcineurin signaling; phosphorylates Dsn1p; functional ortholog of human CK1epsilon